At Need Supplies Australia, we offer premium-grade sodium hydroxide suitable for a wide range of uses, including heavy-duty cleaning, soap making, drain clearing, and industrial applications. Our caustic soda comes in convenient 5kg, 10kg, and 20kg packaging options to suit both home and commercial needs. As a trusted Australian supplier, we ensure fast shipping and guaranteed quality, making it easy and safe to buy caustic soda online – 5kg to 20kg bulk sodium hydroxide in Australia with complete confidence.
Key Properties of Caustic Soda (Sodium Hydroxide)
- Chemical Formula: NaOH
- Shape: This consist of pearls or white flakes
- Solubility: Dissolves completely in water (negative heat)
- Nature: Very corrosive, strong Alkaline
Caustic Soda Uses
Caustic soda, also known as sodium hydroxide, is a versatile chemical with a wide range of applications across various industries and households.
Industrial Uses
- Degreasing and surface preparation in manufacturing
- Saponification in commercial soap production
- Used in textile, aluminium, and paper processing industries
Household Uses
- Unblocks drains and clears pipes fast.
- Deep-cleans ovens, grills, and exhaust hoods
- Perfect for DIY soap and household cleaners
- Assists in paint and varnish removal
Important Considerations while using caustic soda
Handling caustic soda requires care and attention to safety. Wherever you buy caustic soda sodium hydroxide online for industrial, cleaning, or DIY purposes, following proper handling guidelines is essential to avoid injury or chemical reactions.
Safe Handling Instructions
- Always wear protective gloves and safety goggles.
- Avoid accumulating vapours by working on the product in a well-ventilated place.
- Acid or other incompatible chemicals should not be mixed.
Storage Guidelines
- Do not store in a humid environment and in a container with a loose lid.
- Assure that the product is not accessible to children and pets.
- Ensure that the container is labeled correctly and protected from moisture.
Chemical Reactions & Cautions
- May get too hot when added to water a little at a time, and care is needed.
- May cause severe skin and eye irritation or burning upon contact.
- Prevent breathing of dust, use a mask where necessary.
How Safe is Caustic Soda When Used Properly?
Sodium hydroxide is safe for use in both household and industrial settings. We provide products in leak-proof packaging and provide MSDS/SDS sheets upon request, adhering to Australian safety standards for all orders.
Suitable For These Users & Applications
- Plumbers & drain cleaners
- Commercial cleaning services
- Soap manufacturers and artisans
- Chemical labs and workshops
- Metal degreasing & prep professionals
- Homeowners making DIY soap or cleaner recipes.
Directions for Use – Caustic Soda
When you buy sodium hydroxide online, it’s essential to follow all usage instructions provided on the packaging. Whether it’s soap making, heavy-duty cleaning, drain unblocking, or industrial processing, dosages and dilution levels will vary.
How Much to Use for Each Task
- Drain cleaning: Mix approx. 100g per drain with water
- Use in soap-making as per industry standards
- Cleaning: Always dilute before applying to surfaces
Best Practices
- Always add caustic soda to water, never the reverse
- Never touch with bare hands.
- Rinse thoroughly after use
How to Store the 5kg/10kg/20kg Packs
- Store in a cool, dry place.
- Avoid sunlight and moisture
- For best results, use within 12-24 months
Price & Bulk Purchase Options
Our caustic soda is available in 5kg, 10kg, and 20kg packs, ensuring convenience for both one-time buyers and repeat users.
Caustic Soda Price per kg in Australia
Our sodium hydroxide price ranges based on volume. Expect competitive rates and bulk caustic soda pricing to suit industrial or repeat-use needs.
- Price of caustic soda per kg starts around $5-$10 (subject to quantity)
- Bulk sodium hydroxide buyers get volume discounts.
- We also offer flexible quotes for commercial orders
Buy in Bulk – Save More
- Available in bulk commercial packaging (5kg, 10kg, 20kg)
- Get custom quotes on bulk commercial sodium hydroxide
- Repeat customers enjoy loyalty pricing
Why Buy Caustic Soda (Sodium Hydroxide) from Need Supplies?
When you choose Need Supplies, you’re choosing reliability, quality, and local expertise. We are committed to providing premium-grade chemicals trusted by professionals across Australia.
100% Pure, Commercial-Grade Sodium Hydroxide
We supply industrial-strength sodium hydroxide. This is lab-grade caustic sodium hydroxide, suitable for demanding commercial and chemical applications.
Trusted Australian Supplier – Bulk Ready
As a local, Australian-owned business, we support commercial customers with:
- GST invoicing
- ABN-verified service
- Fast delivery across all states
- Secure checkout and responsive support
Available in Bulk – 5kg, 10kg, 20kg Packs
Poly-lined bulk caustic soda packs are available for both small and large facilities.
- Super Concentrated commercial washing powder alternatives
- Efficient solutions for both large and small-scale usage
FAQs – Caustic Soda (Sodium Hydroxide)
Is it possible to purchase caustic soda?
Yes, you can safely buy caustic soda online in Australia from trusted suppliers like us.
Is a bicarb caustic soda?
Sodium hydroxide (NaOH) is called caustic soda; bicarb is sodium bicarbonate.
Where can I buy caustic soda online in Australia?
Here and now at Need Supplies – with expedited shipping, tracking, and bulk.
What is the use of caustic soda?
It is applied in unblocking drains, laundry soap manufacture, degreasing and in chemical reactions.
Can Caustic soda be used at home?
Yes, as long as it is adequately dealt with with gloves and other protective equipment.
What is the amount of caustic soda to use on drains?
Approximately 100g per drain, combined in water, and follow the instructions.
What is the disparity between caustic soda and sodium hydroxide?
They are two names for the same thing.
Is it possible to have a soap making using sodium hydroxide?
It is the foundation of the saponification process.
How do I store bulk caustic soda?
Store it in a dry, airtight, and closed container and avoid moisture.
This product is classified as “Dangerous Goods”
John (verified owner) –
The product is firmly packed.
David (verified owner) –
Very well worth the money.
Christel Broederlow –
Good quality.